ausblenden:
Schlagwörter:
General Relativity and Quantum Cosmology, gr-qc, Astrophysics, High Energy Astrophysical Phenomena, astro-ph.HE
Zusammenfassung:
We present possible observing scenarios for the Advanced LIGO, Advanced Virgo
and KAGRA gravitational-wave detectors over the next decade, with the intention
of providing information to the astronomy community to facilitate planning for
multi-messenger astronomy with gravitational waves. We estimate the sensitivity
of the network to transient gravitational-wave signals, and study the
capability of the network to determine the sky location of the source. We
report our findings for gravitational-wave transients, with particular focus on
gravitational-wave signals from the inspiral of binary neutron star systems,
which are the most promising targets for multi-messenger astronomy. The ability
to localize the sources of the detected signals depends on the geographical
distribution of the detectors and their relative sensitivity, and 90% credible
regions can be as large as thousands of square degrees when only two sensitive
detectors are operational. Determining the sky position of a significant
fraction of detected signals to areas of 5-20 square degrees requires at least
three detectors of sensitivity within a factor of ~2 of each other and with a
broad frequency bandwidth. When all detectors, including KAGRA and the third
LIGO detector in India, reach design sensitivity, a significant fraction of
gravitational-wave signals will be localized to a few square degrees by
gravitational-wave observations alone.